You can use that to scare some people, like take the skull and put it in a jar full water and stick it in the fridge or you can get a bucket and put some food scraps in to make a nasty smell in the bucket, then take the skull and some bones and put them inside the bucket, finally leave the bucket where the garbage man can find it. Heck, you can put the skull in your mailbox for the mailman to find. :]